Assembly & Maintenance a Aussie DA Rainmaker

The Impact head has three adjustment.

Part or full Circle is adjusted at the base of the sprinkler head.

The water stream can be flattened or a fog pattern

The main issue reported is a blockage in the nozzle caused by debris in the hose. To clear remove the head from the body, then the nozzle and clean out any debris. If parts are stiff then use WD40 to lubricate and free up by hand, no tool should be used as may damage the mechanism's.

Hand tighten both arms into the Tee piece.

Note the location of the small port, align the arm to this location and tighten the lock nut. Complete the same process on the second arm.

Using 13mm Open ended Spanner and 4mm Allen Key release tension on the grub screw. Tighten grub screw clockwise until it just tightens up, Note the location of Allen Key..

To achieve a uniform flow of water to all heads, 

Use the Allen Key release tension on the grub screw 1/4 of a turn anti clockwise, note the location of Allen Key. Hold Allen key in position and tension lock nut.  To achieve a full flow of water to all heads open 1/2 or more turns.

The arms may be adjusted to throw water outward (standard as pictured), straight, or inward. if required just undo the locknut to adjust this feature, don't forget to lock up the nut.

The Head is designed to rotate clockwise, if it spins anti clockwise the head may undo from the spindle. The arms may be adjusted to throw water outward (standard), straight, or inward. if required just undo the locknut to adjust this feature, don't forget to lock up the nut.

The flow control allows you to tune the speed of the heads rotation, at full flow the speed will be determined by the pressure loss through your system. We recommend installing heads every 6 Metres at a 45 degree angle to level ground. We generally run the tube along the last set of roof screws on metal roofing.